aaliyah318 aaliyah318

17-03-2016
Mathematics

contestada

what is the answer to 4a squared minus 16a= negative 15

Respuesta :

SmarticalParticals SmarticalParticals

17-03-2016

4a^2 - 16a = -15
4a^2 - 16a + 15 = 0
(2a - 3)(2a - 5) = 0

Now separate the two individual equations, set to zero, and solve...

2a - 3 = 0
2a = 3
a = 3/2

2a - 5 = 0
2a = 5
a = 5/2

Your answers are
3/2 and 5/2

Answer Link

Otras preguntas

What percent of the population were smokers in 1964

How did the enlightenment and American revolution change the way people viewed their relationship to their ruler?

A student would like to determine how heating a liquid changes its volume. The student hypothesizes that the liquid will increase in volume. The following list

Which continent is closest to the south pole?

To a fish, the 4.20 mm thick aquarium walls appear to be only 3.80 mm thick. What is the index of refraction of the walls?

Which question will give data that has a measure of center and variation? A. What is the height of my teacher? B. How many students in my class like algebra?

what is the s phase complete

In which of the following scenarios is the speaker acting advantageously?a. Luis sits casually on a table while presenting.b. Nelson stands close to the audienc

where do surface waves occur

In three to four sentences summarize the impact of the women’s suffragist movement, and the role played by Susan b Anthony and Elizabeth Cady Stanton in this mo